Added status checks for (BWCC) battery status and condition for onboa…

[quentinsch]

Added status checks for (BWCC) battery status and condition for onboard and PCIe RAID-controllers.
Added SNMPsim testfiles for iLO 4 and iLO5 with these changes.

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[Jellyfrog]

Missing the json part of the tests

[github-actions]

Please add test data so we can ensure your change is not broken in the future.
Read the docs to find out how: https://docs.librenms.org/Developing/os/Test-Units